HX.fasta - a FASTA file of all full-length HX hemagglutinin protein sequences for influenza A viruses from any host and any country/region available from the Influenza Virus Resource (http://www.ncbi.nlm.nih.gov/genomes/FLU/FLU.html) as of Sept-13-2007.  Identical sequences have been removed, and lab strains are not included.  X is 1, 2,.. to denote subtypes H1, H2, ...

B_HA.fasta - a FASTA file of all full-length HA hemagglutinin proteins for influenza B viruses from any host and any country/region availables from the Influenza Virus Resource as of Oct-3-2007.  Identical sequences have been removed, and lab strains are not included.

